Last week they were building snowmen, this week it is sandcastles as normal weather returned for the second week of Formula 1 testing.
More appropriate Spanish weather at the Circuit de Barcelona-Catalunya meant all 10 teams could really stretch the legs of their new cars for the first time.
The flashy new cars hit the circuit for the four-day tester on Tuesday, with positive vibes coming from all three Oxfordshire teams.
Lance Stroll believes the Williams FW41 is a big improvement on last year’s challenger, but it is how everybody else has improved that will determine how the Grove-based outfit will fare in a tight mid-field battle.
Sirotkin recorded a respectable time on Tuesday morning after contesting bodywork and balance issues while Stroll, in the cockpit for the afternoon, completed a race distance for the first time. Together they managed 131 laps.
Stroll, who won’t look too much into being adrift at the bottom of the timesheet on the first day, said: “I have the first race distance of the year under my belt now and it was positive.
“I believe we have made a step forward compared to where we were last year. I don’t know where we will be compared to everyone else, but compared to last year’s car, it definitely feels quite a bit better.”
Chief technical officer Paddy Lowe added: “We’re very happy to cover a lot of laps, including our first race distance with the FW41 without incident.”
Renault might be closest to the top three as Nico Hulkenberg, again sharing duty with Carlos Sainz, let his team-mate do most of the talking.
Chief technical officer Bob Bell described Hulkenberg’s session as “scrappy” as the Enstone team spent longer than anticipated in the garage with the second chassis.
Banbury-based Haas appear to have made a strong start to 2018, Kevin Magnussen looking initially more comfortable with the car than Romain Grosjean.
Magnussen, who managed 96 laps out on his own on Tuesday, said: “I’d say it was our first proper day. I’m happy and positive after the day.”
Testing continues until tomorrow (Friday) as teams prepare for lights out in Melbourne on March 25.